| Titre : | Lauber and Hager’s dam-break wave data for numerical model validation |
| Titre original : | Données de rupture de barrage de Lauber et Hager pour valider les modèles numériques |
| Auteurs : | Lai Wai Tan, Auteur ; Vincent H. Chu, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Journal of hydraulic research (Vol. 47 N° 4, 2009) |
| Article en page(s) : | pp. 524-528 |
| Note générale : |
Hydraulique
Résumé en Français |
| Langues : | Anglais |
| Index. décimale : | 627 (Ingénierie des cours d'eau naturels, des ports, des rades et des cotes. Installations de navigation, de dragage, de récupération et de sauvetage. Barrages et centrales électriques hydrauliques) |
| Tags : | Dam-break wave Finite reservoir Free surface flow Hydrostatic pressure Lagrangin blocks on eulerian mesh Saint-Venant equations |
| Résumé : |
Lauber and Hager (1998) have provided a complete set of laboratory data, with both velocity and depth profiles for dam-break flood wave released from a reservoir of finite dimension. At the advancing wave front, the water depth reduces to zero and the velocity peaks. Friction is the dominant effect at the wave front. There is a linear decrease of the velocity from the peak at the wave front toward the back of the dam-break wave. The availability of this data set has provided the opportunity to validate numerical models. The dam-break flood wave is simulated herein using the One-Dimensional Saint-Venant (1DSV) model. A Lagrangian Blocks on Eulerian Mesh (LBEM) method is employed to carry out these calculations. The blocks as the computational elements in the LBEM method produce non-negative depths. Accurate 1DSV model simulation by the LBEM method is possible without the need of a frontal condition for the wet-and-dry interface across the wave front.
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| DEWEY : | 627 |
| ISSN : | 0022-1686 |
| En ligne : | http://www.journalhydraulicresearch.com |
